Wetland Protection Basics

What counts as a wetland?

Wetlands are areas where water at or near the surface shapes the soil and the plants that grow there. They can be marshes, swamps, wet meadows, bogs or seasonal pools, and many are dry for part of the year, which makes them easy to overlook.

Official identification depends on soils, plants and water patterns, and it is done by trained people using specific methods. You cannot always tell by looking, so do not assume a field is not a wetland just because it is dry in late summer.

• Wetlands may be dry part of the year
• Identification uses soils, plants and hydrology
• Professionals make formal determinations

What do wetlands do for you and the land?

Wetlands hold floodwater and release it slowly, which can reduce flooding downstream. They filter sediment and some pollutants, recharge groundwater in some places and provide habitat for amphibians, waterfowl, insects and plants that are hard to find elsewhere.

Even a small wet area on a farm can serve as a stopover for birds or a breeding place for frogs. Protecting what is already there is usually cheaper and more effective than trying to rebuild one later.

• Slow and store floodwater
• Filter runoff
• Shelter wildlife that needs wet habitat

Why are there rules about wetlands?

Because wetlands provide public benefits, many are protected by federal, state and local law. Activities such as draining, filling, ditching, clearing or building in or near a wetland can require permits or may be restricted, and farm programs may have their own conservation requirements.

Rules differ widely and change. Never rely on a neighbor's advice or on memory. Ask the right offices about your specific parcel before you do any work, because violations can be costly and may require restoration.

• Rules can apply to draining, filling and clearing
• Farm program participation may add conditions
• Rules differ by state, county and town

Who should you ask before you change a wet area?

Start with your local NRCS office, which can explain wetland-related farm program rules and may be able to provide technical help. Also contact your state environmental or natural resources agency and your county or town planning, zoning or conservation office.

Ask whether your parcel has mapped or known wetlands, whether a formal delineation is needed, and what permits would apply to the work you have in mind. Get answers in writing when you can.

• Contact NRCS, a state agency and local zoning
• Ask about mapped wetlands on your parcel
• Request written guidance

How do you protect a wetland you already have?

Often the best action is to leave it alone and protect it from nearby harm. Keep livestock out with fencing, avoid dumping yard waste or manure at the edge, and maintain a vegetated buffer on the uphill side to catch sediment.

Do not mow, burn or spray in the wetland without checking what is allowed. Noxious or invasive plants can still be a problem, but treatments in wet areas carry additional label and permit restrictions.

• Fence out livestock
• Keep a vegetated edge uphill
• Avoid dumping and unplanned spraying

Can you restore or create a wetland?

Some landowners restore drained wetlands for habitat, water quality or flood storage, and technical and financial help may exist through federal and state programs and conservation groups. Many such programs involve long-term agreements or easements, so understand the commitment before enrolling.

Restoration is design and engineering work that involves hydrology, soils and local permits. Contact NRCS, your state wildlife or natural resources agency and your conservation district for current options, and do not start digging until the plan and approvals are in place.

• Programs may require long-term easements
• Get a design from qualified specialists
• Secure permits before moving soil

What mistakes do small landowners make?

Common mistakes include assuming a seasonally dry area is not regulated, adding fill to level a wet spot, digging a ditch to drain it, and clearing vegetation right up to the edge. These actions can create legal problems and often make water issues worse elsewhere on the property.

If a wet area is causing a practical problem, such as a flooded path or fenceline, ask for advice about options that work with the water, like relocating the path or building raised, permitted crossings.

• Do not fill or ditch before asking
• Do not assume dry means unregulated
• Work around the wet area where you can

Last reviewed: November 12, 2026. Written by the Homestead & Small Farm Editorial Team. See our editorial policy.